--- product_id: 297270113 title: "EUFY T8900 Entry Sensor (White)" brand: "eufy security" price: "R$40" currency: BRL in_stock: false reviews_count: 6 url: https://www.desertcart.com.br/products/297270113-eufy-t8900-entry-sensor-white store_origin: BR region: Brazil --- # Smartphone app control 100dB siren alert 2-year battery life EUFY T8900 Entry Sensor (White) **Brand:** eufy security **Price:** R$40 **Availability:** ❌ Out of Stock ## Summary > 🚪🔒 Secure your space, stay effortlessly connected. ## Quick Answers - **What is this?** EUFY T8900 Entry Sensor (White) by eufy security - **How much does it cost?** R$40 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/297270113-eufy-t8900-entry-sensor-white) ## Best For - eufy security enthusiasts ## Why This Product - Trusted eufy security brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Installation:** Peel, stick, and secure with included mounting screws—no tools or hassle required for instant protection. - • **Instant Intruder Alerts:** A piercing 100-decibel siren coupled with real-time smartphone notifications keeps you one step ahead of break-ins. - • **Sleek, Minimalist Design:** Compact ASA composite sensor fits seamlessly on any door or window frame without disrupting your aesthetic. - • **Unmatched Battery Endurance:** Enjoy 730 days of uninterrupted security with a single CR123A battery—set it and forget it. - • **Trusted Manufacturer Warranty:** Backed by a 1-year warranty from Anker Innovations Ltd, ensuring peace of mind with every purchase. ## Overview The EUFY T8900 Entry Sensor is a compact, ASA composite contact sensor designed for doors and windows, featuring a 2-year battery life, a powerful 100-decibel siren, and seamless smartphone app integration. Easy to install with included mounting hardware, it offers reliable intrusion detection backed by a 1-year manufacturer warranty. ## Description 2-Year battery life: one battery provides 730 days of monitoring. For doors and windows: small and compact design fits onto any door or window frame. 100-Decibel siren: if a forced entry is detected, a siren as loud as a jackhammer (100-decibel) will be triggered on homebase and you’ll be notified instantly on your smartphone. Easy installation: just peel off the mounting tape and stick the sensor onto the door or window you want to monitor. Review: Very good quality - Sound quality is amazing Review: Eufy ecosystem works well - The Eufy ecosystem is very good, I’ve had it for five years now. Just needed more entry sensors which was easy to synchronize or connect to the WiFi and the system and it works well. The adhesive is good, it sticks properly to the surface of my window really good. I would recommend the entire Eufy ecosystem if you want a reliable security system for your home. Remember you can set up the entire system yourself. It’s that easy. ## Features - Material: cutting-edge ASA composite material - Package Contents: Entry Sensor; CR123A Battery; Magnet; 03 Mounting Screws; 01 Warranty Card; Owner's Manual - 1 year warranty provided by the manufacturer from date of purchase - Entry sensor protect your doors and windows from break-ins ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07GJJZZ3G | | Audible Noise | 100 Decibels | | Brand | eufy Security | | Built-In Media | Entry Sensor; CR123A Battery; Magnet; 03 Mounting Screws; 01 Warranty Card; Owner's Manual | | Colour | White | | Compatible Devices | Smartphone | | Control Method | App | | Customer Reviews | 4.6 out of 5 stars 1,903 Reviews | | Global Trade Identification Number | 00848061058666 | | Item Weight | 0.15 Pounds | | Manufacturer | Anker Innovations Ltd | | Manufacturer Warranty Description | 1 year warranty provided by the manufacturer from date of purchase | | Mfr Part Number | AK-848061058666 | | Model Number | T8900 | | Mounting Type | Door Mount | | Number of Batteries | 1 Lithium Ion batteries required. (included) | | Power Source | Battery Powered | | Sensor Technology | Contact Sensor | | UPC | 848061058666 | | Unit Count | 1.0 Count | | Wattage | 7.5 Watts | ## Product Details - **Colour:** White - **Brand:** eufy Security - **Power Source:** Battery Powered - **Compatible Devices:** Smartphone - **Number of Batteries:** 1 Lithium Ion batteries required. (included) ## Images ![EUFY T8900 Entry Sensor (White) - Image 1](https://m.media-amazon.com/images/I/5161rwtCsHL.jpg) ![EUFY T8900 Entry Sensor (White) - Image 2](https://m.media-amazon.com/images/I/61MvOb6Le2L.jpg) ![EUFY T8900 Entry Sensor (White) - Image 3](https://m.media-amazon.com/images/I/712Wx1pqmvL.jpg) ![EUFY T8900 Entry Sensor (White) - Image 4](https://m.media-amazon.com/images/I/61PyqNLdy+L.jpg) ![EUFY T8900 Entry Sensor (White) - Image 5](https://m.media-amazon.com/images/I/61fzKOXlOHL.jpg) ## Questions & Answers **Q: Notification if a door is left open? Is there a way to set a delay lets say 5 mins so if the door left open for 5 min or more, it notifies via alert?** A: Yes, after 5 mins and many other options. Please see the video. **Q: How many eufy security ***entry sensors** can be used per base station? how many cameras can i use simultaneously with said sensors?** A: One HomeBase can support up to 16 cameras and 16 entry sensor. **Q: Does the updated homebase 2 firmware expose these sensors to apple's homekit?** A: We are sorry that these sensors cannot support homekit. **Q: If power is lost and you have the plus monitoring service will you get notified of the power outage?** A: I am going to say no. It has to check in with them over the Internet and there could be numerous reasons that communications don't reach them. I would be surprised if it does actually check in regularly instead of just waiting to send an alarm alert. On my old alarm it has a battery backup and uses the landline phone to call in issues. So, if the power goes out it will use the battery backup to make a landline call and then the monitoring station will call me. Usually when the battery is low. I could be wrong but it's unlikely this configuration could support that notification. If you have a UPS that keeps your internet powered up then it, or the PC, can be configured to send an alert then it goes to battery. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good quality *by M***U on 11 December 2021* Sound quality is amazing ### ⭐⭐⭐⭐⭐ Eufy ecosystem works well *by R***E on 18 December 2025* The Eufy ecosystem is very good, I’ve had it for five years now. Just needed more entry sensors which was easy to synchronize or connect to the WiFi and the system and it works well. The adhesive is good, it sticks properly to the surface of my window really good. I would recommend the entire Eufy ecosystem if you want a reliable security system for your home. Remember you can set up the entire system yourself. It’s that easy. ### ⭐⭐⭐⭐⭐ A Great Addition To My Eufy Security System *by M***N on 20 September 2025* An all-round great product, set up was easy, and they are super reliable. I just took them out of the box, loaded the included batteries into them, and placed them on my door and door trim, and it worked like a charm. The adhesive strip on the back of them allows you to readjust the sensor and magnet a few times without losing any strength, so you can find the best spot to place them, making sure the gap between them is less than 4cm. When testing, I armed the security system and opened the door as if I were an intruder, and the alarms started blaring instantly. I also got a notification on my phone as soon as it happened. No regrets adding this to my security system ## Frequently Bought Together - eufy Security Entry Sensor, Detects Opened and Closed Doors or Windows, Door Monitoring, Sends Alerts, Triggers Siren, 2-Year Battery Life, Indoor Use Only, Requires HomeBase, 24/7 Monitoring Optional - eufy Security 5-Piece Home Alarm Kit, Home Security System, Keypad, Motion Sensor, 2 Entry Sensors, Home Alarm System, Control from The App, Links with eufyCam, Optional 24/7 Protection - eufy Security Motion Sensor, Home Alarm System, 100° Coverage, 30 ft Detection Range, 2-Year Battery Life, Adjustable Sensitivity, HomeBase Required, Optional 24/7 Protection Service, Home Security --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.br/products/297270113-eufy-t8900-entry-sensor-white](https://www.desertcart.com.br/products/297270113-eufy-t8900-entry-sensor-white) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-05-19*